Cash register



Aug. 27, 1929. E. J. DAMUTH Er AL CASH REGISTER Filed May 8, 1919 5Sheets-Sheet i. i i l l l l l l l l l l l l Il w d 1 l. um@

l Erwin J. Damuth and William S. Rnux Aug- 27, 1929 E. J, DAMUTH ET AL1,725,854

CASH REGISTER Filed May 8, 1919 5 Sheets-Sheet 2 i l I l i /05 3 3 1 A*1 f 1- 5 Q x] i //4 l 1 90 AT I 1 33 I l 7/ 5 77 1 =5 1 l 1 2 1 76 4 96,/60 l l 1 l l i ll6l l l l l l i l l l j I l l e Ir i i l l g :l nu

I SWW/Miou Erwm J. Damuih and William S. Roux Mor/nua Aug. 27, 1929. E.J. DAMUTH ET AL CASH REGISTER Filed Hay 8, 1919 5 Sheets-Sheet .'5

CASH REGISTER Filed May 8, 1919 5 Sheets-Sheet 4 A mmm/ww Y .J7 37 47/67 59 4Q @www tou Erwin J. Damuih and William S. Roux U8- 27 1929- E.J, DAMUTH ET AL CASH REGISTER 5 Sheets-Sheet 5 Filed May 8,` 1919William S. Roux A A/ @Zen/nuit' Ii (l Patented Aug. 27, 1929.

UNITED STATES PATENT OFFICE.

ERWIN J. DAMUTH AND WILLIAM S. ROUX, 0F DAYTON, OHIO, ASSIGNORS, BYMESNE ASSIGNMENTS, TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON,OHIO,

A CORPORATION OF MARYLAND.

CASH REGISTER.

Application filed May 8,

This invention relates to improvements in cash registers and has moreparticular relation to the type ot' cash registers shown and describedin Letters Patent of the United States issued to Thomas Carney May 23,1893, and numbered 497,860, and also in the United States Letters Patentto Joseph P. Cleal No. 718,565, issued January 13, 1903.

rl'he general operation andconstruction ot the machine shown in the`present application are substantially like those of the machines shownin the Carney and Cleal patents. y

The purpose of the present machine is to enable a proprietor of a storeselling taxable goods to keep an account of the sale ot all goods uponwhich there is placed a Government tax and also to keep account of theproper tax which is collectible by the Revenue Department of theGovernment on the sale of such goods.

For the accomplishment of this object the machine is constructed toenable theproprietor to register simultaneously both the amount of apurchase and the amount of proper tax to be applied thereto.

It is a further object of the machine to provide not only for theregistration of tlie amount of the purchase and the amount of the taxassessable on the purchase, but also to make a printed record ot boththe amount oi the tax and the amount of the purchase and to indicateboth the said amounts.

As it frequently occurs that a sale of goods on which no tax is assessedis to be handled by the same cash register as that which handles thesales ot taxable goods the machine is so constructed as to enable theproprietor to make a record of the sale of non-taxable goods and also tomake a record of the fact that no tax has been registered in connectionwith that. sale.

As it is desired to compel a clerk or o1 crater of the cash register tomake the preper records in the machine, the machine is constructed tocompel the clerk or operator to make a record not only of the amount ofthe purchase but also the amount oit the assessable tax, or in case thesale involves goods against which no tax is to'be assessed to make aproper record. of that Yfact as well, so that the printed records ot themachine and also the public indication will clearly 1919. Serial No.295,600.

show the amount of the purchase, the assessable taX, or in lieu et thelatter, some character or symbol to indicate that no taX is assessable.

V'Vith these and incidental objects in view the invention consists incertain novel features of construction and combinations of parts, theessential elements of which are set forth in appended claims and apreferred form of embodiment of which is hereinafter described withreference to the drawings which accompany and form part of thisspecification.

0f said drawings,-

Figs. 1A and 1B taken together constitute .a top plan view of themachine with the cabinet and certain parts omitted for the sake ofclearness.

Fig. 2 is a cross sect-ion ot the machine taken approximately en the'line 2 2 ot' Fig. 1B looking in the direction ot the arrows.

Fig. 3 is a side elevation of the printing mechanism shown on the righthand end olf the machine in Fig. 1B.

Fig. 4 is a portie-n of a detail strip printed by the printing mechanismshown in Figs. lB and 3. i

Fig. 5 is a section of the machine taken on the line 5-5 of Fig. llooking in the direction o1 lthe arrows certain parts boing emitted forthe sake o clearness.

Fig. 6 is a detail section partly broken away of the mechanism forrotating the common operating shaft.

Fig. 7 is a perspective view looking from the back and shows the lockingdevice `tor the key coupler and the mechanism for controlling saiddevice.

Fig, 8 shows the driving connections for the tax and transaction typewheels.

Fig. 9 a detail 'ot the frame or yoke cooperating with the no tax andunits tax keys.

The machine in general includes banks of depressible keys, certain banksto set up amounts representing the tax, and other banl'sl to set upamounts representing the purchase price. rlhc operation ot' the machinecomprises an initial depression of one of the tax keys which will serveto unlock the purchase price keys, thereby permitting the operation ot'the purchase keys. The operation of the purchase keys will, throughmechanisin common to the tax keys and purchase keys, effect a completeoperation of not only the purchase keys but also those of the taX keyswhich have been initially operated.

Separate totalizers are provided for the tax keys and the purchase keyswhereby the amount of the taX and the amount of the purchase will beregistered separately on their proper totalizers.

lVhen it is desired to operate a purchase key to record a purchase ofgoods which is non-taxable, a No tax key is provided which serves todisable the locking mechanism which normally prevents the operation ofthe purchase keys thereby permitting the operation of a purchase key.This will result in registering the pure-hase on the purchase tot-alizcrwhile no entry is made on the tax tot-alizer. i

The usual indicators for this type of machine are provided for all ofthe keys of the register so as to indicate to the public which of thekeys, both of the tax and purchase groups, have been operated.

Simultaneously with the registration of the amounts on their propertotalizers a printing of these amounts is effected by the.

printing mechanism, t-he amount of taX and the amount of the purchasebeing printed in separate columns on said strip.

Described in detail the machine includes a series of amount or purchasekeys 10, a series of tax keys 11, a No tax key 12 and a No sale key 13.All of the keys 10, 11, 12 and 13 are pivotally mounted upon atransverse rod 14 (Figs. 2 and 5) supported in side frames 15 and 16.Common to all of the keys 19, 11, 12 and 13 is a key coupler 17 of aform well known in the art and fully described in the aforesaid Carneyand Cleal patents. The key coupler 17 is pivoted at 1S at cach end inthe side frames 15 and 16, and normally rests on the rear ends of thepurchase keys and No sale key 13. Each of the purchase keys 10 and theNo sale7 key 13 is provided with a notch 19 (Fig. 2) which is adapted tocooperate with a lip 2O formed on the rear edge of the key coupler 17when any of the keys 1() or key 13 is depressed.

Suitably mounted in the lside frames and 16 is a transverse rotary shaft2l which is adapted to be given a complete rotation upon eachreciprocation of the key coupler 17 by the mechanism shown in detail inFig. 6. By referring to said figure it will be noted that at its righthand end the co-upler 17 is provided with a stud 22 which projects intoan elongated slot l-9 formed in the vertically reciprocable double rack23. At its lower end the double rack 23 is provided with an open slot 24which straddles a stud 25 carried by the right hand side frame 16. Atits upper end the rack 23 is also slotted and on the inside walls of theslot is furnished with oppositely faced rack teeth 26 which co-operatewith a pinion 27 fast on the rotary shaft 21. At the end of the downstroke of the key 16, lug 223 (Fig. 6) is at the top of lug 224 on theframe 16 and spring 227 is then above the pivot point 25 and rocks therack 23 counter-clockwise about pivot 25, thereby disengaging the lefthand teeth 26 from the pinion 27 and engaging the right hand teeth 26with said pinion. Lug 223 then comes down on the left side of lug 224,and when the rack 23 is way down the spring 227 rocks said rackclockwise to the position shown. This mechanism is substantially thesame in construction and operation as the mechanism shown in theaforesaid Carney and Cleal patents and also in the patent to Cleal No,773,060-issued October 25, 190tand is for the accomplishment of thesaine purpose, that is, the giving of a complete rotation to the shaft21 at each reciprocation of the key coupler 17 the rotation being in.the direction of the arrow shown in Fig. 6.

ln order to prevent a retrograde movement of the shaft 21 a ratchet orfull stroke disk 23 is made fast to the right hand end of the shaft 21and cooperatesrwith a full stroke pawl or lever 29 pivoted at 30 to theframe of the machine and held in engagement wit the ratchet 28 by aspring 31 seated in a lug 32 on the right hand side frame 16.

lt will thus be seen upon each complete depression of a purchase key 10or No sale key 13 the key coupler 17 will be reciprocated and throughthe connections shown in Fig. 6 and abovedescribed, a complete singlerotation will be given to the shaft 21. The function of the key coupler17 as well known in the art is to permit the starting of an operation oftwo keys, for example, the dollar key and the twenty-cent key and then acompletion of the operation by pressing either one of the two keys. Byreason of the engagement o f the lip 20 of the key coupler with thenotches 19 in the key 10 both the dollar key and the twenty-cent keywill be fully operated by the complete depression of either one of thetwo.

Tum heya-The tax keys 11 and the No tax key 12'are of a differentconstruction from the keys 10 and 13. The construction of these keys issubstantially that shown in United States Letters Pat-ent to E. J. HallNo. 875,661 dated December' 31, 1907 and lV. G. Doty, No. 823,516 issuedJune 19, 1906.

The keys 11 and 12 are of the construction shown in Figure 5. It will benoted that these keys 11 and 12 are cut away to form a recess 33 so thatwhen the key coupler 17 is resting on the keys 10 and 13, as shown inFig. 2, it will not be resting on the keys 11 and 12. The keys 11 and 12are provided with a notch 19 for cooperating with the lip 2O of the keycoupler 17 in the same manner as the notches 1.9 of the keys 10 and 13cooperate with said lip 2O as hereinbefore described.

By reason oi the recess 33 of the keys 11 and 12, any one or more of thekeys 11 and 12 may be given an initial depression independently of anymovement of the key coupler 17. This initial depression of the keys 11and 12 is for the purpose of unlatching the purchase keys and cNo sale.key to permit an operation of the latter keys in a manner to behereinafter described.

Each of the keys 11 and 12 has pivotally mounted near its rear end apair of pawls 34 and 35. This construction is substantially like theconstructions shown in the Hall and Doty patents just above referred toand is for the purpose of holding the keys 1l and 12 in their partiallydepressed positions. The normal positions of the pawls 34 and aresubstantially that shown in F 5 wherein it will be seen that the pawl 34which is pivoted at 36 is normally held against a stationary frame 37 bya spring 38 interposed between the lower end of the pawl and a stud 39carried by each of the keys. At its upper end the pawl 34 is providedwith a hook 40 adapted to cooperate with a locking point 41 of the pawl35 as will be hereinafter described. Then any one of the keys 11 and 12is depressed the rear end of that key will be elevated until the lowerend of the pawl 34 passes clear or" the stationary frame 37 when, underthe action of spring 38, the lower end of said pawl will move rearwardlyabove the trai Ae 37. lVhen the pressure on the forward end ot' the keyis removed the pawl 34 engaging with the frame 37 will hold the rear endof the key elevated. As the rear end of the depressed key moves upwardlythe face 42 of the pawl 35 will strike the under side of the lip 2O ofthe key coupler 17 and curing the continued operation of the keys 11 or12 the pawl 35 will be rocked clockwise around its pivot 43 carrythepoint 41 away from the hook 4() of the pawl and bringing a tace 44across the notch 19 in the depressed key. This initial depression of anyoi the keys 11 or 12 will, when the rear end of the key is elevated,cause the point 45, which is at the outer end of the notch 19, to crossthe arc of movement of the rear edge of the lip 2O of the key coupler17. Consequently when the key coupler 17 is rocked clockwise about itspivot 18 by the depression of a key 10 or 13 the lip 2O will engage thepoint 45 at the outer end of the notch 19 of the key 11 or 12 and uponthe continued movement of the coupler 17 under the control of a key 10or 13 the rear end ot the partially depressed key or keys 11 or 12 willbe carried upwardly with the key coupler 17 thereby completing theoperation ot the previously partially depressed key.

As this operation takes place the lip 2O will enter the notch 19 of thekey 11 or 12 and engage the face 44 of the pawl Dui'- ing the continuedoperation otl the key coupler 17 the pawl 35 will be rockedcounterclockwise `about its pivot 43, (Fig. until the point 41 of thepawl 35 will be brought into position adjacent the hook 40 of the pawl34. At this time the pawl 34 will have passed free of the frame 37. Thespring will then be effective to rock the pawl 34 about its pivot 36 ina clockwise direction causing the hook 40 of the pawl 34 to engage andlock over the point 41 of the pawl 35. This will hold the tace 42 ot thepawl 35 rigid against the under side of the lip 2O of the key coupled17. lVhen the keys 10, 11, 12 and 13 have completed their movement-s inone direction, pressure is released on the outer ends of the keys and byreason of the weight of the key couple-r 17 the rear ends of thedepressed keys are moved downwardly toward normal positions. As the keycoupler rests on the keys and 13 this downward or counter-clockwisemovement of the key coupler 17 will be applied directly to the key.However, as the recess of these keys 11 and 12 does not permit of thekey coupler 17 contacting' directly with said keys, the lip resting onthe face 42 of the pawl will perform the function ot' rester'- ingl thekeys 11 and 12 to normal positions. As the keys 11 and 12 reach theirnormal positions a beveled rear face 4G 'formed on the lower end of eachpawl 34 will engage the curved forward edge 47 o'i the frame 37 and uponthe continued restoring movement of the keys 11 and 12 the pawls will berocked counter-cloclnvise about their pivots 36 thereby disengagingv thehooks 40 from the point-s 41 of the pawls 35, the parts then being againin the positions shown in Fig.

It will be noted that when a key 11 or 12 has been partially depressed awall 43 at the rear end of the recess 33 will engage the rear edge ofthe lip 2O ot the coupler 17, and because ot the intersecting arcs ofmovement of the keys and coupler, the raising of the rear edge of thecoupler 17 by a key 11 or 12 is prevented.

The keys 11 (Fig. 1A) comprise digit keys 1 to 9 inclusive which are theunits or penny tax keys and the. keys 10 and 2f) which are the tens ofcents tax keys. In order to asin restoring the keys 11 and l2 to normalpositions and also hold said keys in normal position there are providedtwo yokes 50 and 51 (Fig. 7). The joke 50 is yoked over the two tens oicents keys ust to the rear of the transverse rod 14. The yoke 51 (Fig.9) is the longer one of the two and is yoked over all of the units ottax keys 1 to 9 inclusive, and also the No tax key 12. The arms of theyokes 50 and 51 are pivoted on the rod 14. The right hand arms of bothoi: the yokes 50 and 51 shown in Figs.

1A, 5 and 7 are formed with downward eX- tensions 52 to which areconnected springs 53 also secured to a-forward portion of the frame ofthe machine. rEhe springs 53 normally tend to draw the lower Vends ofthe arms 52 forwardly thereby holding the yokes 5() and 51 in contactwith the upper edges of the keys 1,1 and 12.

Loc/c for purchase ccy3-Pivotally mounted upon the rod 14 are the arms54 of a third yoke 55 (Figs. 1A, 5 and 7) which normally rests upon theyokes 50 and 51.

TheV left hand arm 54 is provided with a downwardly extending arm 56carrying a stud 59 which normally contacts with the forward end ofaslide 60 suitably mounted to slide on the frame of the machine. Theslide 60 is formed with a slot 61 receiving a pin 62 carried by a, bosson the base frame of the machine. A spring 163 interposed be 164provided with a locking shoulder 165 1^ coupler 17.

which normally'projects into a notch 166 formed in the lip 20 of the keycoupler 17. The slide 60 is further provided with a linger 167 whichprojects under the frame 37 thus preventing an elevation of the rear endof slide 60.

It will be seen from the above construction that as long as the keys 11and 12 remain in their undepressed positions, the locking shoulder 165of the arm 164 on the slide 60 will stand in the position shown inFigure 5 thereby obstructing movementof the key Consequently an attemptto depress aV key 10 or 13 without first partially depressing the key 11or 12 will be frustrated, `as the key coupler 17 can not be rockedclockwise.

lf either key 11 or 12 is first partially depressed, as above described,it will engage and rock its appropriate yoke 50 or 51, the rocking ofwhich yoke will rock the yoke 55 on the rod 14 thereby sliding the slide60 rearwardly to disengage the locking shoulder 165 from the lip 2O ofthe key coupler: rihis will permit the operation of the key coupler andconsequently an operation of one of the keys 1() or 13. 1When a key 10or 13 is then depressed, the key coupler 17 will be moved clockwiseabout its pivot 18 thereby coupling all of the keys 10 or 13 which havebeen operated so as to move as a unit and also cause said coupler 17 toengage the keys 11 or 12 which have been operated, thereby completingthe operation of said latter keys.

indicating mechanism-Slidably mounted in the guides 63 and 64 just abovethe rear end of each of the keys .1.0, 11, 12 and 13 is an indicator rod65 which carries at its upper end an indicator tablet 66 of a type fullyshown and described in the hereinbeforev mentioned Carney and `Clealpatents. The indicator rods 65 are held in lowermost positions bysprings 67 so that the lower ends of all of the indicator rods 65 are incontact with the rear ends of the keys 10, 11, 12 and 13. Each of theindicator tablets 66 bears a special character or characters which arepreferably identical with the character `or characters appearing on theforward ends of their appropriate keys 10, 11, 12 and 13. )When any ofthe keys are depressed, the indicator rods 65 will be elevated againstthe tension of the springs 67 carrying the tablets 66 upwardly until aprojection 68 carried by the indicator rods 65 passes above a rockingbail 69 pivoted at 70 at either end to the side frames 15 and 16. Theconstruction and operation of this bail are old and well known in theart and will not be described in detail here. lts purpose is to hold theindicator rods 65 appropriate to the depressed keys in elevatedpositions between operations of the machine so as to sustain anindication between operations of the machine thereby showing which keyswere depressed in the previous operation. It will thus be seen that whenany one of the keys 10, 11, 12 and 13 is depressed the proper indicatortablet 66 will be raised and publicly exposed through sight openings inthe cabinet which are commonly provided in cash registers so as toindicate which of the keys 10, 11, 12 and 13 have been operated.

T0tcZz'ccrs.-As hereinbefore stated in the early part of thedescription, the machine is provided with two totalizers 70 and 71. Thetotalizer 70 (Figure 5) lies at the left hand end of the machine justabove the tax keys 11 and 12 (Figure 5) but is omitted from Figure 1Afor the sake of clearness in showing the yokes 50, 51 and 55 which areoperated by the taX keys 11 and 12.

rThe totalizer 71 (Fig. 2) lies to the right, (as shown in Fig. 1B) justabove the purchase keys 10.

The construction and operation of the two totalizers 7() and 71 areidentical and for convenience the left hand totalizer 70 will behereinafter called the Tax7 totalizer and the right hand totalizer 71will be hereinafter called the Purchase7 totalizer.

The TaX7 totalizer 70 is pivotally supported by bracket-s 73 and 74carried by a forward tie bar 75 constituting part of the frame of themachine. The Purchase totalizer is supported by brackets 76 and 77 alsocarried by the tie bar 75.

Pivota-lly attached at 78 (Figsj2 and 5) to each of the keys 10 and 11is an upwardly extending arm 7 9 which is formed near its upper end.with a notch 80. The notches 80 of the various arms are locateddifferent distances from their pivotal points 78, thereby enabling thegiving of graduated movements to the registering mechanism of themachine by the operation of the various keys 10 and 11.

As the construction and operation of the Tax and Purchase totalizers areidentical it is thought that the description with reference to thePurchase totalizer will be suliicient to enable any one skilled in theart to understand the operation of both totalizers.

Referring to Fig. 2 the notch 8O of the arm 79 is adapted to engage across rod 811 when a corresponding key 10 is depressed. This cross rod811 is carried by a rocking frame 821 pivotally mounted upon a rockshaft 88 supported in the side frames 15 and 1G. A rocking frame isprovided for each of the three groups of keys 10; that is, one frame 82for the pennies group, comprising the keys 10. numbered 1 to 9inclusive; one frame 821 for the tens of cents group, con prising thekeys 10 to 90 inclusive; and a third frame 822 for the dollars group,comprising the one and two dollar keys. The fra-me 82 carries a rod 81,the frame 821, as above stated, carries rod 811 and the frame 822carries a rod 812. It will thus be seen that when any7 one of the keys10 is depressed it will rock its appropriate frame 82, 821 or 822 adistance according to the location of the notch 80 of its appropriatearm 79. The frame 82 (Figs. 1A and 1B) for the units of cents keys 10 isloosely pivoted on the rock shaft 88 and has fast thereto at its lefthand end a rack segment 84. The frame 821 appropriate to the tens ofcents keys 10 has fast thereto on its right hand end a similar segment841. The frame 822 appropriate to the dollars keys 10 is pinned as at 85to the rock shaft 88, and consequently any movement of the frame 822 ofthe dollars keys 10 will be transmitted to the rock shaft 88. Alsopinned to the rock shaft 88 as at 86 (Fig. 1B) is a third rack segment842 to which are transmitted rocking movements of the frame 822 of thedollar keys 10 through the medium of the rock shaft 88.

It will thus be seen that the movement of the pennies, dimes and dollarspurchase keys 10 will be transmitted to the three rack segments 84, 841and 842 (Fig. 1B) through the medium of the appropriate frames 82, 821and 822.

Paroli ase z50tfZize2.Tlie Purchase totalizer is substantially identicalin construction and operation with the totalizer shown in the Carney andCleal patents hereinbefore referred to, but will be described brietiy asfol'- lows:

rlhe Purchase totalizer 71 comprises a plurality of totalizer elements90 (Fig. 1B) in the form of wheels rotatably mounted upon a shaft 91suitably supported in the rocking totaliZer frame 92. The wheels 90 bearon their peripheries stamped numerals running from 1 to 9 and 0inclusive. In 1B it wi'l be noted that the totalizer includes seven ofsuch wheels 90. The three wheels of lower numerical order, that is, thethree wheels to the right in Fig. 1B, are each fast to a pinion 98 (Fig.2) each of which is normally in operative alignment with one of theregistering rack segments 84, 841 and 842. In the normal position of theframe 92, however, the pinions 93 are out of operative engagement withthe registering segments 84, 841 and 842, as shown in Fig. 2. Upon therotation of the shaft 21, a cam 95 rigidly mounted thereon willcooperate with anti-friction rollers 96 carried by a lever 97operatively connected to the rocking totalizer frame 92. lVhen the shaft21 is rotated upon depression of one of the purchase keys 10, the cam 95is effective to rock the totalizer frame 92 through the medium of thearm 97, so as to carry the Purchase totalizer rearwardly to engage thetotalizer pinions 98 with the registering race: segments 84, 841 and 842before any movement of these registering rack segments and the frames82, 821 and 822 is begun. This engagement of the pinions 98 with theregistering rack segments 84, 841 and 842 is maintained throughout thedownward movement of the outer ends of the l-:eys 10. At the completionof the downward movement of the outer ends of the keys 10, which is theend of the registering stroke of the keys, the cam 95 will then act uponthe lever 97 to rock the totalizer frame 92 to carry the Purchasetotalizer forwardly to disengage the pinions 98 from the registeringrack segments 84, 841 and 842. During the return movement of the keys10, therefore, and the consequent restoring movement of the registeringrack segments, the pinions 98 will remain disengaged so that the returnmovement of the segments 84, 841 and 842 will have no effect upon thetotalizer elements.

Suitable transfer mechanism, comprising the transfer pawis 961 carriedby rocking arms 971, which latter are operated by cams 98 fast on therotating shaft 21, is provided for performing* the function of carryingfrom the totaliZer elements of lower order to the elements of higherorder at the proper time in the rotation of the totalizer elements 90.This transfer mechanism, however, is old and well known in the art andis fully described in the hereinbefore mentioned Carney and Clealpatents. each actuation of one or more of the purchase keys 10, thepurchase totalizer will be rocked to engage the pinions of thetot-alizer with the registering rack segments 84` 841 and 842 so as toenter upon the purchase totalizer It will thus be seen that upon Y theamount ofi the purchase as represented by the keys depressed. Means isalso shown for resetting the totalizer wheels to Zero by rotating theshaft 91 but as this is old and well knowninthe art it will not bedescribed here.

Tam omheen-The operation of the T ax tot-alizer will be brieflydescribed as follows, it being thought unnecessary to go into thedescription in detail, inV view of the fact hereinbefore mentioned thatthe operations of the Tax7 and Purchase totalizers are identical.

The tens tax keys 11, 10 and 20 carry arms 7,9 having graduated notches80, as shownin Fig. 5; The arms 79 cooperate with a rocking frame S23similar in construction to the rocking frames for the purchase keys. There are two rocking frames, 823 and 32d for the tax keys as shown inFigure 1A. The left hand rocking frame 823, as shown in Fig. 1A, ispivoted on the rocking shaft 33 and has fast thereto at its right handside a segment 100- (Figs. 1A and 5.) The segment 100 has rack teethformed thereon meshing with a pinion 101 fast on a transverse shaft 102suitably mounted in the side frames 15 and 16. The shaft 102 also hasfast thereon a pinion 103 which meshes with a registering rack segmentS43 which is constructed and operates and performs the same function asthe registering segment-s for the Purchase totalizer.

The right hand frame 824 for the penny tax keys 11 is also pivoted onthe rock shaft 83 and has fast' to its right hand end a simiiar segment-1001. This segment 1001 meshes with av pinion V104 pinned4 to atransverse shaft 105 also suitably supported in the side frames 15 and16. The shaft 105 has fast thereon a pinion 106 which meshes with aregistering segment 344.

Through the connections just described the two registering segment-s 843and 84st (Fig. 1A) receive movements of varying extents according tothekeys 11v which are operated, the hight hand one of the segments beingcontrolled as to extent of actuation by units tax keys 11, while theleft hand one receives an extent of movement appropriate to the tens ofcents tax key 11 which is operated.

The Tax 7 totalizer is shown at 70 in Fig. 5 and in construction isidentical with the Purchase tot-alizer, the same mechanism beingemployed for engaging the totalizer pinions with the registering racksegments 343 and 344, as in the oase of the Purchase totalizer. Themechanism for engaging the Tax77 totalizer, however, has been omittedfor the sake of clearness in the drawings. f

It will thus be seen that upon the operation of any one or more of thetax keys 11 the amount of the tax will be entered on a Tax totalizer sothat the Tax totalizer willshow the total amount of tax which isrecorded on the machine. At the same time the indicating tablet 66appropriate to the tax keys 11 will be elevated to indicate the amountof tax which is registered for each taxable purchase.

Printing mec7mm'sm.-For the purpose of printing upon a detail recordstrip to be retained in the machine the amount of the purchase, togetherwith the` tax to be assessed, the movements of the registering segmentsfor both the Tax and Purchase totalizers are transmitted to printingwheels 110 for printing the amount of tax, and 111 for printing theamount of the purchase. Referring to Figs. 2 and 8, each of theregistering segments 84, 841 and 842 of the Purchase totalizer mesheswith a pinion 112, the left hand pinion beingfast on a cross shaft 113,while the other two pinions are fast on the left hand ends of nestedsleeves 1111 supported onthe shaft 113. The shaft 113 and sleeves 111extend to the right (Figs. 1B and 8) Vthrough the side frame 16 and havefast on their right hand ends the printing wheels or elements 111. Theshafts 102 and 105 which receive differential actuation from the tworegistering frames S23 and 824 of the tax keys 11, extend to the right,and at their right hands carry pinions 115 and 116 respectively. Thepinions 115 and 116 mesh with segments 117 and 1171 respectively, whichare loosely pivoted on the rock shaft 33. The segments 117 and 1171 meshwith pinions 118 and 1131 respectively fast on the left hand end ofsleeves 119 which extend to the right through the right hand side frame16 and carry on their right hand ends the printing element-s or wheels110 for the printing of the tax.

Through the connections just above described the printing` elements orwheels 110 and 111 will be adjusted during the registering strokes ofthe keys 10 and 11 to positions representing values of the keysdepressed, both for the tax and the amount of purchase. The wheels 110and 111 bear on .their peripheries type 120. Just beneath the typewheels 110 and 111 (Fig. 3) is a platen 121 for the purpose of taking animpression, from the raised type 120, on a detail strip 122. The platen121 is carried on the forward end of an arm 123 pivoted at 124 on asub-frame 1251, mounted on the right hand side frame 16, the sub-frame1251 serving to support all of the parts of the printing mechanism.

Mounted on kthe right hand end of the rotary shaft 21 isa scroll cam 125which cooperates with projection 126 carried by the platen arm 123.interposed between the arm 123 and a lug 127 on the printer frame 125 isa' spring plunger 123 which serves to hold the projection 126 of theplaten arm 123 in Contact with the periphery of the scroll cam 125. Theshaft 21 is rotated counter-clockwise, as viewed in Fig. 3, and it isobvious that as the shaft 21 rotates, the portion ot the scroll cam 125of increasing radii will serve to rock the platen arm 123counter-clockwise about its pivot 124 until the cam reaches its point etgreatest radius. At this time the downward or registering stroke of theforward end of the keys 10, 11, 12 and 13 has been completed and thewheels 110 and 111 have been adjusted to positions representing theamount of tax and the amount ot purchase. Then upon the continuedrotation of the shaft 21 tl e high point of the scroll cam 125 will passthe projection 126 of the platen arm 123, thereby permitting the springplunger 128 to act to throw the platen 121 against the adjusted type120, thereby causing an impression to be made on the detail strip 122.

The detail strip 122 is led from the supply roll 129 about two studs 130on the printer frame 1251 to a receiving roll 131. The receiving roll131 has fast on its left hand side a ratchet wheel 132. Cooperating withthe ratchet wheel 132 is a hook a 1in 133 having its hook 134 held inengagement with the ratchet 132 by a spring 13o.

- 133 is pivotally mounted upon an arm 1.36

iast on the right hand end of the trunnion 18 ot the key coupler.Consequently, the arm 136 receives a reciprocating movement on therecinccating movement of the key coupler 17. This reciprocating movementof the arm 136 acts through the arm 33 pivoted thereon to rotate theratchet 132 and receiving roll 131 the distance of one tooth of theratchet 132 in a counter-clockwise direction. A spring held pawl 232 isprovided to prevent retrograde movement of the receiving roll.Consequently, this advances the detail strip a single space at eachopera.- tion of the machine, so that the items are printed successivelyon the detail strip in the order in which they are entered on thetotalizers, as shown in Fig. 4e.

An inking ribbon 180 is provided for giving a properly inked impressionon the detail strip 122. The ink ribbon 130 is a continuous ribbonpassing about an ink roll 190, a guide stud 191, a roll 202 on the stud192 and a guide roll 193. In order to keep the proper tension on the inkribbon 130 there is provided a roll weight 194 carried oy a frame 195pivoted on the stud 296. This weightbears on the ribbon and holds the.ribbon taut as shown.

For the purpose of holding the positioned type aligned while animpression is being taken, each of the type wheels 110 and 111 has tastto its side a star disk 197. The star disks 197 have cooperatingtherewith a series of aligning fingers 193 pivotally mounted at The arm1.99 in a frame 196 which is pivoted on the stnd 192. Springs 297 areprovided .for holding the fingers 19S yieldingly in contact with thestar disks 197 when they are thrown into engagement therewith. For thepurpose of throwing the aligning fingers into engagement with the stardisks 197, the frame 196 is formed with a double-arm 29() whichcooperates with a cam 291 fast on the shaiit 21. The cam 291 is soformed that at the proper time during the rotation oi the shaft 21 whichis immediately upon the completion oi the adjusting movement ot the typewheels 119 and 111, said cam will be effective to rock the frame 196through the medium of the arm 200 to engage the aligning' lingers 193with the notches formed in the star disks 197. After an impression istaken and before the keys start on their return stroke, the :trame 196is rocked clockwise (Fig. to disengage the loc ting lingers fr m tl enotches in the star disks 197.

The printing wheels 1.10 and. 1.11 are spaced apart so that, as shown inFig. 4t, the printed impressions will appear in columns, the lett handcolumn 137 representing the amount of the purchase and the right handcolumn 13S representing the amount of the tax. By examination of 'theportion of the detail strip 122 (Fig. et) it will be noted in the letthand column there appears one item which has been marked 139. This itemconsists of two zeros; this indicates that the machine has been operttedwithout depress ing one of the keys 10 but by pressi; li No sale key 13..inmediately to the right of the entry 139 is a similar entry oi twozeros in the tax column, which entry has been marked 140. As no purchasewas made and the No sale7 key 13 was used, no tax would be assessable,therefore the No tax key 12 was depressed and consequently the taxprinting wheels 110 have been cause-al 'to print two eros on the detailstrip. Just above the tax entry 1110 is a similar entry 141, comprisingtwo zeros. Adjacent these two Zerosis an item marked 142 which shows apurchase of 30e. As this was for the sale of non-taxable goods, theprinted ent y shows that the machine was operated by pressing the No taxkey 12 and then pressing the 3092 purchase key 10.

The detail strip 122 therefore shows in every instance the amount of thepurchase accompanied by an item in the right hand column showing theamount of tax assessable for that purchase in the case of a taxablesale, while zeros are printed when the No tax key is used in connectionwith the transaction involving non-taxable articles.

iSpecial counters. For the purpose ot showing the number oi t' nes thatthe No sale key 13 has been operated, there is provided al step-by-stepcounter oi the Veeder type (Fig. 1B) bearing the reference numeral 150.This step-by-step counter 150 comprises three number Wheels 151 operatedby a multiple tined paWl 152 pivotally mounted on the upper end of anarm 154 (Fig. 2) pivoted on a short shaft 155 mounted on the tie bar 75.The arm carries at is lower end a pin 156 which projects into a slot 157formed in an arm 158 pinned at 159 to the No sale key 13. Through thisconnection each operation of the No sale key 13 effects a reciprocationof the multiple tined paivl 152 so as to add one on the units Wheel ofthe counter.

For the purpose of showing the number of times the machine has beenoperated, an additional step-by-step counter 16() (Fig. 1B) is provided.This counterp160 is operated by a multiple tined paWl 161 carried by theupper end of an arm 162 (Fig. 2) also pivoted on the short shaft 155 andhaving` at its lower 'end a pin 163 projecting into a slot 164 formed inthe upper end of a lever 165 pivoted on the cross rod 14 Which supportsthe keys 10, 11, 12 and 13. At its rear end the lever 165`is formed Witha hook 166 which hooks over the lip 20 on the key coupler 17.Consequently, upon each actuation of the key coupler 17, the lever 165is rocked about the rod 14 and through the medium of the arm 162 and themultiple tined pavvl 1.61, the counter 160 is advanced one step or unitupon each operation of the key coupler 17.`

For the purpose of keeping' an account of the number of times the No taxkey has been operated, the No tax key is provided with an arm 158 (Fig.1A) similar to the arm 158 on the No sale key. This arm 158 for the Notax key is identical in construction With that of the No sale key andcooperates With a similar pin 156 carried by an arm 171 fast on a shaft172 suitably supported in brackets 173 carried by the tie bar 75.lvlounted on the left hand end of the shaft 172 is an arm 174 Whichcarries a multiple tined paWl 175 which actuates the Wheels of anadditional step-by-step counter 17 6. Consequently, upon each operationof the No tax7 Vkey 12 the counter 176 Will be advanced one step or unitand Will show the number of times that the No tax77 key has beenoperated. Y

General operation-The general operation of the machine, therefore,comprises the following steps.

supposing the machine to be used in a soda fountain Where a tax of onecent is to be assessed for each ten cent purchase or fraction thereof,and taking as an example the purchase of a five-cent soda, the operatorWill operate the machine as follows:

F or a live-cent soda the tax Will be one cent, consequently theone-cent tax key 11 is depressed partially and by the mechanismhereinbefore described, that key is held in partially operated position.This partialV operation of the tax key 11 releases for operation the keycoupler 17. Consequently the purchase keys 10 may then be operated tocomplete the operation of the machine. The purchase being five cents,the operator presses the live-cent purchase key 10. The operation of thekey 10 Will act to complete the operation of the previously andpartially operated tax key 11. The one-cent tax Will be properlyregistered on the Tax totalizer and the amount of the purchase, fivecents, will be properly registered upon the Pur`- chase totalizer 71. Atthe same time, the indicator appropriate to the one-cent tax key 11 willbe elevated and publicly exposed and the live-cent purchase key 10 Willlike- Wise be elevated. At the same time, the printing elements Will beadjusted so as to print live cents in the purchase column and one centin the tax column, as indicated by the first item at the top of thecolumns on t ie detail strip in Fig. 4.

1f a sale is then made of' goods which is not taxable the l operaterfirst presses the No tax key. This serves through the operation of theyoke 55 to release for operation the key coupler 17 The purchase keys 10are then free to be operated and the operator will depress thetwenty-cent purchase key 10 if that be the amount of the purchase. Thetwenty-cent purchase Will properly be entered upon the purchasetotalizer, While no entry will be made upon the tax totalizer.

'The indicator tablet 66 for the No tax key will be raised to exposedposition While the twenty-cent indicator appropriate to the twenty-centpurchase key Will also be raised to exposed position. At the same time,the printing elements 110 and 111 Will be adjusted to positions to makethe fourth entry from the top on the portion of the detail strip 122 asshown in Fig. 4 which shows a twenty-cent vpurchase and no tax.

On a No sale transaction, the No tax key 12 is first depressed; thisserves to unlock the key coupler and the No sale key 13 is thendepressed. This results in an indication of No tax and No sale, noregistration on either of the tWo totalizers and a printed entry OO O0indicated by reference numerals 139 and 140 made on the det-ail strip122, as shown in Fig. 4.

TWhile the form of mechanism herein shown and described, is admirablyadapted to fulfill the objects primarily stated, it is to be understoodthat it is not intended to confine the invention to the one form ofembodiment herein disclosed, for it issusceptible of embodiment invarious forms all coming Within the scope of the claims Which follow.

What is claimed is:

1. 1n a. machine of the class described, the

CJI

combination of a plurality of sets of manipulative amount determiningdevices, an operating member common to all of said devices and operatedby a device of one set, and means controlled by the devices of anotherset and normally preventing operation of said common operating member.

2. In a machine of the class described, the combination of a pluralityof sets of pivotally mounted keys, an operating member common to all ofsaid keys and operated by the keys of one set, a rocking frame common tothe keys oi another set, and a retaining means operated by the saidframe, said means normally engaging the common member to prevent anoperation of the keys of the first set until one of the keys in thesecond set has been operated to rock said frame.

3. In a machine of the class described, the combination of a pluralityof sets of manipulative amount determining devices, an operating membercommon to all of said devices and operated by the devices of one set,and a lock controlled by the devices of another set and cooperating withsaid common operating member for normally preventing operation of saidcommon operating member.

4. In a machine of the class described, the combination of a pluralityof sets of manipulative amount determining devices, an operating membercommon to all of said devices and operated by the devices of one set, asliding latch for normally preventing the operation of said commonoperating member, and means controlled by the devices of another set forsliding, and thereby disabling, said latching means.

5. In a machine of the class described, the combination of a pluralityof sets of manipulative amount determining devices, an operating membercommon to all of said devices and operated by the devices of one set, asliding latch for normally preventing the operation of said commonoperating member,

a pivoted yoke common to all of the devices of another set andoperatively engaging said latch whereby the latter will be disabled uponthe operation of any one of the devices controlling said yoke.

6. In a machine of the class described, the combination ot a pluralityof sets of manipulative amount determining devices, the devices of oneset being adapted to receive a partial operation as a preliminary to anoperation of a device in another set, means common to the two sets ofdevices whereby the devices of the two sets may be simultaneously andcompletely operated, and a member common to the partially operabledevices, and operable while the devices of the second mentioned set aremaintained in normal positions, for normally preventing the operation ofsaid connnon means.

7. In a machine of the class described, the combination of a pluralityof sets of manipulative amount determining devices, the devices of oneset being adapted to receive a partial operation as a preliminary to anoperation of a device in the other set, means common to the two sets ofdevices whereby the devices of the two sets may be simultaneously andcompletely operated, a latch normally effective to prevent the operationof said common means, and a member common to the partially operabledevices and operated upon the partial operation of the latter to disablesaid latch.

8. In a machine of the class described, the combination of two series ofkeys, a special key, an operating member common to all keys in allseries and the special key, means for compelling a partial operation ofa key in one of the series or the special key to normally preventoperation of the common operating member before a key in the otherseries is operated.

In testimony whereof we alix our signa tures.

ERWIN J. DAMUTH. WILLIAM S. ROUX.

